https://bugs.freedesktop.org/show_bug.cgi?id=106191
--- Comment #5 from François Jacques francois.jacques@gmail.com --- If there's anything else I can provide that would help further diagnosing this issue, I'll gladly try.
Steps I'm thinking about taking for further experiments, in the meantime:
1) try with latest stable kernel available for my distro 2) try with liveCD of a commercial distro /w rolling release 3) try with older liveCD /w fglrx driver (perhaps from 2011)
I can change the radeon files to output more data or 'debug' trace too. I would need minimal guidance for which DEFINE to set prior rebuilding to get that debug trace.
Thank you very much in advance; I can't understand why this pro beast from 2010 can't drive that monitor through DisplayPort.